250W 48V to 24V Isolated DC-DC Converter for 5G Outdoor Cabinet | MDB250-48S24
MDB250-48S24 250W Isolated DC-DC Converter
Input: 36–72VDC
Output: 24VDC / 10.4A
Rated Power: 250W
Application: 5G Outdoor Cabinet Auxiliary Power
The MDB250-48S24 is a 250W isolated DC-DC converter designed to convert fluctuating 48V telecom power into a stable 24VDC auxiliary supply.
Its 36–72VDC wide input range is suitable for practical 48V telecom systems where battery charging, discharging and changing loads can cause bus voltage variations.
Galvanic isolation helps separate the 48V telecom power domain from downstream 24V electronics, reducing interference coupling and supporting stable operation of monitoring devices, industrial gateways, controllers, cooling fans and other auxiliary equipment.
The 250W power capacity makes it suitable for 5G outdoor cabinets requiring reliable power for multiple 24V auxiliary loads.
Typical Applications:
5G Outdoor Cabinets
Telecom Base Stations
Outdoor Communication Nodes
Industrial Gateways
Monitoring Equipment
24V Controllers
Cooling Fans
Telecom Auxiliary Electronics
I. MODELS LIST
Single Channels Output
Model | Input Voltage (VDC) | Input Voltage Range (VDC) | Output voltage (VDC) | Output Current(A) | Output Power(W) | Ripple And Noise(mv) | Efficiency (Typ) |
MDB250-48S24 | 48VDC | 36-72VDC | 24VDC | 10.4A | 250W | 200 | 86% |
Only the typical models are listed. If you need another models, please inform the power,Input and output voltage,then feel free to call us.
II. FEATURES
1 | High and low voltage input for option |
2 | Good heat dissipation with beautiful appearance |
3 | Natural cooling |
Condition: All specifications are tested under the room temperature 25 ℃, Normal input voltage and Pure Negative Normal Load
III. INPUT CHARACTERISTIC
Rated value(VDC) | Voltage Range(VDC) |
48VDC | 36-72VDC |
IV. OUTPUT CHARACTERISTIC
Parameter | Value |
Power | 250W |
Output Voltage | 24VDC |
Output Current | 10.4A |
Line Regulation | ±0.5% |
Load Regulation | ±0.5% |
Voltage Set-point Accuracy | ±2% |
Output Current Limiting | 120%(Typ) |
V. PROTECTIVE CHARACTERISTIC
1 | Input under voltage protection |
2 | Input over voltage protection |
3 | Over temperature protection |
4 | Output over current protection |
5 | Output short circuit protection |
GENERAL CHARACTERISTIC
Parameter | Value |
Switching Frequency | 100-200KHz |
lsolation Resitstance | 200MΩ |
lsolation Voltage
Parameter | Value |
Input-Output | >1500VDC |
Input-Case | >1050VDC |
Output-Case | >500VDC |
Environmental Characteristics
Parameter | Value | |
Case Temperature | Industry | -25 – +85℃ |
Military l | -40 – +85℃ | |
Storage Temperature | Industry | -45 – +105℃ |
Military | -55 – +105℃ | |
VI. MECHANICAL DRAWING AND PIN DEFINITION
Reliable 24V Auxiliary Power for 5G Outdoor Cabinets
5G outdoor cabinets normally operate from a 48VDC telecom bus, while monitoring, control, communication and thermal-management devices may require stable 24VDC power.
The MDB250-48S24 converts a 36–72VDC input into regulated 24VDC/10.4A output, creating a dedicated isolated auxiliary power path between the telecom bus and sensitive downstream equipment.
Its wide input capability helps accommodate voltage variations caused by battery charging, discharging and changing telecom loads, while galvanic isolation helps reduce electrical interaction and ground-related interference between different parts of the cabinet.
With 250W output power, the converter provides practical capacity for multiple auxiliary devices and helps engineers simplify the 48V-to-24V power architecture.
Typical Power Architecture
48V Rectifier / Telecom Battery System
↓
36–72VDC Telecom Bus
↓
MDB250-48S24 Isolated DC-DC Converter
↓
Stable 24VDC Auxiliary Power
↓
Monitoring / Gateway / Controller / Cooling Fan / Auxiliary Electronics
Why MINGZINC?
MINGZINC develops industrial isolated DC-DC power solutions around actual operating conditions rather than voltage conversion alone.
For telecom and outdoor equipment projects, we support:
Wide input voltage customization
Customized output voltage and power
Galvanic isolation
EMI/EMC-resistant power design
Thermal and cooling optimization
Customized interfaces and mounting
OEM/ODM engineering support
For Power Supply Distributors, DC-DC Converter Suppliers, Telecom Equipment Suppliers, System Integrators and Telecom OEMs, MDB250-48S24 can complement existing 48V telecom power portfolios with a reliable isolated 24V auxiliary power solution.
Need a customized 48V-to-24V DC-DC power solution for your telecom equipment? Contact MINGZINC for technical specifications, sample evaluation and OEM/ODM support.